function FormUtil() {
	
	/**
	 * Add the className of the element with className parameter
	 * 
	 * @return the element modified
	 * @param element :
	 *            (HTMLElement) element concerned
	 * @param className :
	 *            (String) new className of the element
	 */
	this.addClassToElement = function(element, className) {
		var currentClass = element.getAttribute("class");
		var newClass = (currentClass) ? currentClass + " " + className : className;
		element.setAttribute("class", newClass);

		return element;
	};

	/**
	 * Remove the specified className of the element
	 * 
	 * @return the element modified
	 * @param element :
	 *            (HTMLElement) element concerned
	 * @param className :
	 *            (String) className of the element to remove
	 */
	this.removeClassOfElement = function(element, className) {
		var currentClass = element.getAttribute("class");
		var newClass = (currentClass) ? currentClass.replace(className, "") : "";
		element.setAttribute("class", newClass);

		return element;
	};
	
}